X-Plane 11:
With a brand new user interface, and a new level of quality in the included aircraft, X-Plane 11 is the upgrade you've been hoping for. X-Plane 11 includes detailed 3-D scenery for more than 3,000 airports around the world. Terminal buildings, hangars, jetways, & more make these airports feel alive.•Free Demo: X-Plane 11

Digital Combat Simulator World (DCS):
Digital Combat Simulator World (DCS World) is a popular and free-to-play digital battlefield game, focusing on simulation of military aircraft. It includes the FREE Su-25T and TF-51D aircraft and it is extensible through additional DCS modules as well as user-made add-ons and mods.•Download Free: Digital Combat Simulator World

Aerofly FS 2:
Explore the skies with Aerofly FS 2, an advanced flight simulator which features one of the best 3D graphics available. The sophisticated flight dynamics model gives you a stunning level of realism. Take the controls of aircraft such as the Boeing 747 jumbo jet, Cessna 172, Airbus A320 and others - an airplane for any situation. Select your starting location, set the time and weather. Take off from one of more than 300 airports in California, Nevada, Arizona, Utah, New York and Switzerland. Explore a world of aviation beauty that has entranced many of plane fans from across the globe.•Demo: Aerofly FS 2

Controllers:
To get the best out of your Flight Simulator you will want to use a good 'Flight Simulator Controller'. There are 'Flight Sticks' (analogue joysticks) for controlling the aircraft, as well as 'Rudder Pedals' and a 'Flight Throttle' for controlling the engine(s). Other accessories include 'Info Panels' to display warning and information lights, or 'Flight Switch Panels'.

You can also get a HOTAS (Hands on Throttle and Stick) controller which is a combined 'Flight Stick' and 'Flight Throttle'.

There are many Flight Simulator Controllers on the market today at various prices but a couple of the best brands include 'Thrustmaster' and 'Saitek'.